20961177

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{877}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 28995072

約数和(自身を除く): 8033895

約数列:

[1, 3, 31, 93, 257, 771, 877, 2631, 7967, 23901, 27187, 81561, 225389, 676167, 6987059, 20961177]

約数ペア:

[(1, 20961177), (3, 6987059), (31, 676167), (93, 225389), (257, 81561), (771, 27187), (877, 23901), (2631, 7967)]